#include "log.h"
#include "strv.h"
#include "unit-name.h"
+#include "dbus-service.h"
#define COMMENTS "#;\n"
#define NEWLINES "\n\r"
[SERVICE_AUTO_RESTART] = UNIT_ACTIVATING,
};
+static void service_init(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ s->timeout_usec = DEFAULT_TIMEOUT_USEC;
+ s->restart_usec = DEFAULT_RESTART_USEC;
+ s->timer_watch.type = WATCH_INVALID;
+ s->sysv_start_priority = -1;
+ s->socket_fd = -1;
+
+ exec_context_init(&s->exec_context);
+
+ RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
+
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+}
+
static void service_unwatch_control_pid(Service *s) {
assert(s);
/* FIXME: Maybe we should compare the name here lexicographically? */
- if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t))) < 0)
+ if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
return r;
}
if (unit_name_to_type(m) == UNIT_SERVICE)
r = unit_add_name(u, m);
else {
- if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL)) >= 0)
- r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL);
+ if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL, true)) >= 0)
+ r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
}
free(m);
if (r == 0)
continue;
- r = unit_add_dependency_by_name(u, UNIT_AFTER, m, NULL);
+ r = unit_add_dependency_by_name(u, UNIT_AFTER, m, NULL, true);
free(m);
if (r < 0)
* needed for early boot) and don't create any links
* to it. */
- if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL)) < 0 ||
- (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL)) < 0)
+ if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 ||
+ (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
goto finish;
}
return r;
}
-static void service_init(Unit *u) {
- Service *s = SERVICE(u);
-
- assert(u);
- assert(u->meta.load_state == UNIT_STUB);
-
- s->timeout_usec = DEFAULT_TIMEOUT_USEC;
- s->restart_usec = DEFAULT_RESTART_USEC;
- s->timer_watch.type = WATCH_INVALID;
- s->sysv_start_priority = -1;
- s->socket_fd = -1;
-
- exec_context_init(&s->exec_context);
-
- RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
-}
-
static int service_verify(Service *s) {
assert(s);
state != SERVICE_FINAL_SIGKILL) {
service_unwatch_control_pid(s);
s->control_command = NULL;
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
}
if (state == SERVICE_DEAD ||
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
+static int service_coldplug(Unit *u) {
+ Service *s = SERVICE(u);
+ int r;
+
+ assert(s);
+ assert(s->state == SERVICE_DEAD);
+
+ if (s->deserialized_state != s->state) {
+
+ if (s->deserialized_state == SERVICE_START_PRE ||
+ s->deserialized_state == SERVICE_START ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL ||
+ s->deserialized_state == SERVICE_STOP_POST ||
+ s->deserialized_state == SERVICE_FINAL_SIGTERM ||
+ s->deserialized_state == SERVICE_FINAL_SIGKILL ||
+ s->deserialized_state == SERVICE_AUTO_RESTART)
+ if ((r = unit_watch_timer(UNIT(s),
+ s->deserialized_state == SERVICE_AUTO_RESTART ?
+ s->restart_usec :
+ s->timeout_usec,
+ &s->timer_watch)) < 0)
+ return r;
+
+ if ((s->deserialized_state == SERVICE_START &&
+ (s->type == SERVICE_FORKING ||
+ s->type == SERVICE_DBUS)) ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RUNNING ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL)
+ if (s->main_pid > 0)
+ if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
+ return r;
+
+ if (s->deserialized_state == SERVICE_START_PRE ||
+ s->deserialized_state == SERVICE_START ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL ||
+ s->deserialized_state == SERVICE_STOP_POST ||
+ s->deserialized_state == SERVICE_FINAL_SIGTERM ||
+ s->deserialized_state == SERVICE_FINAL_SIGKILL)
+ if (s->control_pid > 0)
+ if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
+ return r;
+
+ service_set_state(s, s->deserialized_state);
+ }
+
+ return 0;
+}
+
static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
Iterator i;
int r;
service_unwatch_control_pid(s);
+ s->control_command_id = SERVICE_EXEC_STOP_POST;
if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
if ((r = service_spawn(s,
s->control_command,
service_unwatch_control_pid(s);
+ s->control_command_id = SERVICE_EXEC_STOP;
if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
if ((r = service_spawn(s,
s->control_command,
service_unwatch_control_pid(s);
+ s->control_command_id = SERVICE_EXEC_START_POST;
if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
if ((r = service_spawn(s,
s->control_command,
s->control_pid = pid;
+ s->control_command_id = SERVICE_EXEC_START;
s->control_command = s->exec_command[SERVICE_EXEC_START];
service_set_state(s, SERVICE_START);
service_unwatch_control_pid(s);
+ s->control_command_id = SERVICE_EXEC_START_PRE;
if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
if ((r = service_spawn(s,
s->control_command,
service_unwatch_control_pid(s);
+ s->control_command_id = SERVICE_EXEC_RELOAD;
if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
if ((r = service_spawn(s,
s->control_command,
return !!s->exec_command[SERVICE_EXEC_RELOAD];
}
+static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+ assert(f);
+ assert(fds);
+
+ unit_serialize_item(u, f, "state", service_state_to_string(s->state));
+ unit_serialize_item(u, f, "failure", yes_no(s->failure));
+
+ if (s->control_pid > 0)
+ unit_serialize_item_format(u, f, "control-pid", "%u", (unsigned) (s->control_pid));
+
+ if (s->main_pid > 0)
+ unit_serialize_item_format(u, f, "main-pid", "%u", (unsigned) (s->main_pid));
+
+ unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
+
+ /* There's a minor uncleanliness here: if there are multiple
+ * commands attached here, we will start from the first one
+ * again */
+ if (s->control_command_id >= 0)
+ unit_serialize_item(u, f, "control-command", mount_exec_command_to_string(s->control_command_id));
+
+ if (s->socket_fd >= 0) {
+ int copy;
+
+ if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
+ return copy;
+
+ unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
+ }
+
+ return 0;
+}
+
+static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
+ Service *s = SERVICE(u);
+ int r;
+
+ assert(u);
+ assert(key);
+ assert(value);
+ assert(fds);
+
+ if (streq(key, "state")) {
+ ServiceState state;
+
+ if ((state = service_state_from_string(value)) < 0)
+ log_debug("Failed to parse state value %s", value);
+ else
+ s->deserialized_state = state;
+ } else if (streq(key, "failure")) {
+ int b;
+
+ if ((b = parse_boolean(value)) < 0)
+ log_debug("Failed to parse failure value %s", value);
+ else
+ s->failure = b || s->failure;
+ } else if (streq(key, "control-pid")) {
+ unsigned pid;
+
+ if ((r = safe_atou(value, &pid)) < 0 || pid <= 0)
+ log_debug("Failed to parse control-pid value %s", value);
+ else
+ s->control_pid = (pid_t) pid;
+ } else if (streq(key, "main-pid")) {
+ unsigned pid;
+
+ if ((r = safe_atou(value, &pid)) < 0 || pid <= 0)
+ log_debug("Failed to parse main-pid value %s", value);
+ else
+ s->main_pid = (pid_t) pid;
+ } else if (streq(key, "main-pid-known")) {
+ int b;
+
+ if ((b = parse_boolean(value)) < 0)
+ log_debug("Failed to parse main-pid-known value %s", value);
+ else
+ s->main_pid_known = b;
+ } else if (streq(key, "control-command")) {
+ ServiceExecCommand id;
+
+ if ((id = service_exec_command_from_string(value)) < 0)
+ log_debug("Failed to parse exec-command value %s", value);
+ else {
+ s->control_command_id = id;
+ s->control_command = s->exec_command[id];
+ }
+ } else if (streq(key, "socket-fd")) {
+ int fd;
+
+ if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ log_debug("Failed to parse socket-fd value %s", value);
+ else {
+
+ if (s->socket_fd >= 0)
+ close_nointr_nofail(s->socket_fd);
+ s->socket_fd = fdset_remove(fds, fd);
+ }
+ } else
+ log_debug("Unknown serialization key '%s'", key);
+
+ return 0;
+}
+
static UnitActiveState service_active_state(Unit *u) {
assert(u);
return service_state_to_string(SERVICE(u)->state);
}
+static bool service_check_gc(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ return !!s->sysv_path;
+}
+
+static bool service_check_snapshot(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ return !s->got_socket_fd;
+}
+
static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
Service *s = SERVICE(u);
bool success;
}
} else if (s->control_pid == pid) {
- assert(s->control_command);
- exec_status_fill(&s->control_command->exec_status, pid, code, status);
+ if (s->control_command)
+ exec_status_fill(&s->control_command->exec_status, pid, code, status);
+
s->control_pid = 0;
log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
/* If we are shutting things down anyway we
* don't care about failing commands. */
- if (s->control_command->command_next && success) {
+ if (s->control_command && s->control_command->command_next && success) {
/* There is another command to *
* execute, so let's do that. */
/* No further commands for this step, so let's
* figure out what to do next */
+ s->control_command = NULL;
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+
log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
switch (s->state) {
goto finish;
if (de->d_name[0] == 'S') {
- if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service)) < 0)
+ if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service, true)) < 0)
goto finish;
- if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service)) < 0)
+ if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service, true)) < 0)
goto finish;
} else if (de->d_name[0] == 'K' &&
* implicitly added by the
* core logic. */
- if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service)) < 0)
+ if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service, true)) < 0)
goto finish;
- if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service)) < 0)
+ if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service, true)) < 0)
goto finish;
}
}
return -EAGAIN;
s->socket_fd = fd;
+ s->got_socket_fd = true;
return 0;
}
.suffix = ".service",
.init = service_init,
- .load = service_load,
.done = service_done,
+ .load = service_load,
+
+ .coldplug = service_coldplug,
.dump = service_dump,
.can_reload = service_can_reload,
+ .serialize = service_serialize,
+ .deserialize_item = service_deserialize_item,
+
.active_state = service_active_state,
.sub_state_to_string = service_sub_state_to_string,
+ .check_gc = service_check_gc,
+ .check_snapshot = service_check_snapshot,
+
.sigchld_event = service_sigchld_event,
.timer_event = service_timer_event,
.bus_name_owner_change = service_bus_name_owner_change,
.bus_query_pid_done = service_bus_query_pid_done,
+ .bus_message_handler = bus_service_message_handler,
+
.enumerate = service_enumerate
};
~ianmdlvl / elogind.git / blobdiff